Segment E1EDP28 in outbound invoic

Hello everyone,

I need to get the LIKP-TRAID field from delivery to invoice in the IDOC (INVOIC).

I found the TRAID field in the E1EDP28 segment, but when I create an IDOC from an invoice (IDOC_OUTPUT_INVOICE function), this segment is not populated.

Where can I populate the segment? (Is it SAP standard or do I need to use an exit?) And how?

Thanks in advance.

Regards